has anyone used one of these?

http://chucker54.stores.yahoo.net/prstseca.html

thinkn about getting one for the 440, 1 7/8 ttis, ported 906's milled .060 cams going to be in the 570 lift range around 250 duration @ .050 with 10:1 pistons

looks like a decent carb, i was told to avoid the speed demons because of the duration of the cam, will this proform be ok?

i have used 750 proform dublepumpers on my litle 340 with satisfying results with a 248/248 at .050 cam. ths has been on both a singelplane manifold a dualplane and i have used two of those carbs on a tunnelram on this same engine and they have worked pretty good to me just alitle jetting and tuning to make them work as good as most are capable of:) i like them

I've had a proform 950 on my 498 stroker for 4 seasons now and have had zero problems. A friend bought one also and,like Me,very satisfied.

Performance is excellent and if I drive easy and don't stomp it, I'll get 12 mpg in the city

I added a proform main body to an old whooped 750DP and it kicked tail.